Preparation, characterization and adsorption activity of highly porous metal-organic framework; MOF-199

Document Type : Original Article

Authors

Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, P.O.Box 70, Mansoura- Egypt

Abstract

This paper reports an effective approach for synthesis of MOF-199 through solvothermal method. The synthesized MOF-199 was characterized by sets of different techniques such as FT-IR, and SEM and applied successfully for adsorption of methylene blue dye from simulated aqueous solution. The FT-IR results indicated that MOF-199 was indeed synthesized and SEM confirmed that a crystalline framework was completely achieved and matched the fully octahedral shape. To understand adsorption fairly, the effects of initial dye concentration, pH of solution, adsorbent dosage, contact time and temperature on the adsorption process were studied. Kinetic studies, in addition, the two familiar isotherms; Langmuir and Freundlich models were also reported to determine the adsorption characteristics. The results of Adsorption experiments displayed that the adsorption kinetic and isotherms fitted well with pseudo 2nd order and Langmuir model, respectively. The maximum uptake capacity of MB at 25oC was found to be 103.5 mg.g-1 and even after the 5th run durability, the uptake capacity reduced only within 5%, proving that the framework of MOF-199 has good stability

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Mansoura Journal of Chemistry
Volume 43, Issue 1
February 2019
Pages 23-31

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